From 535e0abc0534b139b067d496bb93663acffb72ce Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 31 Aug 2016 08:49:45 +0100 Subject: [PATCH] pcmcia: soc_common: add support for reset and bus enable GPIOs Add support to soc_common for controlling reset and bus enable GPIOs from within the generic soc_common layer, rather than having individual drivers having to perform this themselves. Signed-off-by: Russell King --- drivers/pcmcia/soc_common.c | 16 ++++++++++++++++ drivers/pcmcia/soc_common.h | 3 +++ 2 files changed, 19 insertions(+) diff --git a/drivers/pcmcia/soc_common.c b/drivers/pcmcia/soc_common.c index 4036454b2785..f7721274cfba 100644 --- a/drivers/pcmcia/soc_common.c +++ b/drivers/pcmcia/soc_common.c @@ -119,6 +119,7 @@ static void __soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt, if (skt->ops->hw_shutdown) skt->ops->hw_shutdown(skt); + clk_disable_unprepare(skt->clk); } @@ -286,6 +287,21 @@ static int soc_common_pcmcia_config_skt( ret = skt->ops->configure_socket(skt, state); if (ret == 0) { + struct gpio_desc *descs[2]; + int values[2], n = 0; + + if (skt->gpio_reset) { + descs[n] = skt->gpio_reset; + values[n++] = !!(state->flags & SS_RESET); + } + if (skt->gpio_bus_enable) { + descs[n] = skt->gpio_bus_enable; + values[n++] = !!(state->flags & SS_OUTPUT_ENA); + } + + if (n) + gpiod_set_array_value_cansleep(n, descs, values); + /* * This really needs a better solution. The IRQ * may or may not be claimed by the driver. diff --git a/drivers/pcmcia/soc_common.h b/drivers/pcmcia/soc_common.h index ee40db16dc40..686ba3238c76 100644 --- a/drivers/pcmcia/soc_common.h +++ b/drivers/pcmcia/soc_common.h @@ -62,6 +62,9 @@ struct soc_pcmcia_socket { #define SOC_STAT_BVD2 2 /* BATWARN / IOSPKR */ #define SOC_STAT_RDY 3 /* Ready / Interrupt */ + struct gpio_desc *gpio_reset; + struct gpio_desc *gpio_bus_enable; + unsigned int irq_state; struct timer_list poll_timer; -- 2.20.1